A ship, on reaching sea from a river __________ (rises/sinks).

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Solution

River water is pure water and free from salts, so the density of river water is less.
Sea water contains more amount of salts in it, so the density of seawater is more.
High-density water offers greater upthrust on the ship.
Hence, a ship, on reaching the sea from a river rises.

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A ship, on reaching sea from a river __________ (rises/sinks).

River water is pure water and free from salts, so the density of river water is less.Sea water contains more amount of salts in it, so the density of seawater is more.High-density water offers greater upthrust on the ship.Hence, a ship, on reaching the sea from a river rises.

River water is pure water and free from salts, so the density of river water is less.
Sea water contains more amount of salts in it, so the density of seawater is more.
High-density water offers greater upthrust on the ship.
Hence, a ship, on reaching the sea from a river rises.